424442320 has 40 divisors (see below), whose sum is σ = 1001569824. Its totient is φ = 167240832.

The previous prime is 424442309. The next prime is 424442339. The reversal of 424442320 is 23244424.

424442320 = 2055² + 2056² + ... + 2150².

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34234 + ... + 44953.

Almost surely, 2^424442320 is an apocalyptic number.

424442320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424442320 is an abundant number, since it is smaller than the sum of its proper divisors (577127504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424442320 is a wasteful number, since it uses less digits than its factorization.

424442320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79267 (or 79261 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 424442320 is about 20601.9979613629. The cubic root of 424442320 is about 751.5182990979.

Adding to 424442320 its reverse (23244424), we get a palindrome (447686744).

It can be divided in two parts, 4244 and 42320, that added together give a palindrome (46564).

The spelling of 424442320 in words is "four hundred twenty-four million, four hundred forty-two thousand, three hundred twenty".